InChI=1S/C21H28O11/c1-11(2)7-13(23)8-21(10-22,5-3-14(24)12-4-6-30-9-12)32-20-17(27)15(25)16(26)18(31-20)19(28)29/h4,6-7,9,15-18,20,22,25-27H,3,5,8,10H2,1-2H3,(H,28,29)